2-poles ceramic band-pass filter 2450 MHz

The Epcos B69812-N2457-A201 filter is suitable for the 2.4 GHz wireless/ISM band, it comes in SMD miniature package that can be easily installed in existing equipment providing a very effective further filtering on the receiver.

It is also suitable for new projects for it is a low-cost component and it occupies a very small space (only 2.55 x 2.5 mm), it does not need any tuning so ready for use.

We have tested in our laboratory this filter both single and two in cascade to further improve the selectivity characteristics. From the graph below you can see the selectivity curve and return loss of one and two filters (impedance matching to 50 Ω).